Malicious PDF — malware analysis report

Static analysis result for SHA-256 811b4218a68b3e56…

MALICIOUS

PDF

47.6 KB Created: 2020-08-14 06:19:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd94764685be0c21bbace7f62be8bee0 SHA-1: 232dc937b051cdf50280ffc8211a733bef2ab2f8 SHA-256: 811b4218a68b3e5665fdcf6c44387b6bac06f3e9eaa848b30580c82442b3dcf4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains text related to financial reports and a URL that appears to be a lure. The presence of a malicious redirector link and the mass of external links strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=financial+feasibility+report+meaning In PDF document text
    • http://files.uottawabgsa.ca/uploads/1/3/0/7/130739731/01b5713f100.pdfIn PDF document text
    • http://files.stephhaxton.com/uploads/1/3/0/7/130739069/resetazaj.pdfIn PDF document text
    • http://files.mydaybydaydiary.com/uploads/1/3/1/6/131606431/fixipevedivamonon.pdfIn PDF document text
    • http://belawezu.esmacats.com/uploads/1/3/1/3/131398134/6a086c7b72fa456.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6975/8874/files/ruvabilarodusan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2729/9478/files/attestation_sur_l_honneur_gouv_fr.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1197/8902/files/pemanfaatan_bonggol_pisang.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3042/9346/files/wazowoxupezal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3697/8849/files/healthy_keto_food_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1053/8147/files/17493222859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kepikopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8694/5187/files/cardiothoracic_surgery_instruments.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5480/9756/files/46739129701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4704/2728/files/82494418461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2123/6386/files/cube_world_cheats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0515/7269/files/tipubuwelig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2385/8845/files/cerfa_taxe_formation_professionnelle.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BA6 5532 bytes
SHA-256: 0006e58d254e6a6a7970e4faf33d486fde1f1a2eba966f4edc6277355b84ca41
font_01_sfnt_off00008e5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E5E 10304 bytes
SHA-256: f19a6b2a46e94eb62d572a1e3a152502852d0ca0f71473bffb97e252ecd6036d

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